Passivated CRG catalysts

Details Passivated CRG catalysts Passivated CRG catalysts

1983-03-09

1984-06-19

Gantz, Delbert E.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502335, B01J 2384

Patent

active

044553919

ABSTRACT:
Passivated coprecipitated nickel-alumina catalysts are provided which require minimal reactivation treatment for use as primary steam reforming gasification catalysts and no reactivation treatment when used for catalyzing methanation reactions. The catalysts are prepared by conventional coprecipitation techniques but are calcined at temperatures in excess of 480.degree. C. and reduced at temperatures less than 600.degree.. Passivation is effected by conditioning at 175.degree. to 200.degree. C. in carbon dioxide.

REFERENCES:
patent: 2696475 (1954-12-01), Farron
patent: 3185651 (1965-05-01), Bosc
patent: 3363988 (1968-01-01), Hayes
patent: 3912775 (1975-10-01), Broecker
patent: 4132672 (1979-01-01), Wise
patent: 4160745 (1979-07-01), Murrell et al.
patent: 4216123 (1980-08-01), Banks et al.
patent: 4285837 (1981-08-01), Sato et al.

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